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https://issues.apache.org/jira/browse/HDFS-2662?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13171962#comment-13171962
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William McNeill commented on HDFS-2662:
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I tried adding the parameters from 7489 to by hdfs-site.xml configuration file
and see the exact same behavior. I still get the SCDynamic store warning, and
the lack of a logged error about DFS directories not existing when they haven't
been properly formatted.
So I can't get the 7489 workaround to work, but I still suspect that's an
unrelated issue.
> Namenode should log warning message when trying to start on a unformmatted
> system
> ---------------------------------------------------------------------------------
>
> Key: HDFS-2662
> URL: https://issues.apache.org/jira/browse/HDFS-2662
> Project: Hadoop HDFS
> Issue Type: Improvement
> Components: name-node
> Affects Versions: 0.20.203.0
> Environment: Single-node cluster on OS X 10.7 (Lion)
> Reporter: William McNeill
> Priority: Minor
> Labels: format, logging, namenode
>
> When you try to start the namenode for a system that does not have a
> formatted DFS, it fails silently without any indication that the lack of
> formatting was the problem. I tried to run start-dfs.sh on a single-node
> cluster with an unformatted HDFS. The namenode failed to start, but generated
> no warning messages, and its log was empty. After running "hadoop namenode
> -format" everything worked.
> Details in this thread:
> http://mail-archives.apache.org/mod_mbox/hadoop-common-user/201112.mbox/%3CCAN9z%2BopAn-t_f3FRC%3DDtV0n0ysoKd3Fek-fJPb68PMThiPooKg%40mail.gmail.com%3E
> This is a difficult problem to diagnose because the namenode gives you no
> feedback. It would be better if it printed an error message to its log file.
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